The experimental generation of non-classical features of quantum states based on the superposition of photon-added even/odd coherent states has recently received a special interest. However, adding photons to any quantum state, such as the thermal state, coherent state, squeezed vacuum state, is in general a challenging task and can produce classical states. The features of the photon-added squeezed vacuum state were investigated in [1]}, photon-added coherent states, and photon-added thermal states considered in several works [2]}, [3]}, [4]}. The formalism of photon added coherent states or excited coherent states were considered in [5]}, [6]}, [7]}. Many authors have examined the effects of adding quanta to coherent states [8]}, of successive elementary one-photon excitations of a coherent state and modified photon-added coherent states [9]}.
